機動戦士ガンダム 鉄血のオルフェンズ

On a terraformed Mars three centuries after the Calamity War, child soldier Mikazuki Augus serves as a low-ranking pilot for Chryse Guard Security alongside his friend Orga Itsuka, the company's de facto leader. CGS is hired to escort the young Martian activist Kudelia Aina Bernstein to Earth and is promptly ambushed by the Earth-aligned military Gjallarhorn. The boys mutiny against their adult bosses, rename themselves Tekkadan and put Mikazuki into the cockpit of an unearthed Calamity War mobile suit, the Gundam Barbatos.